diff --git a/libraries/render-utils/src/AmbientOcclusionEffect.h b/libraries/render-utils/src/AmbientOcclusionEffect.h
index 3643e608ed..b3a93ab1de 100644
--- a/libraries/render-utils/src/AmbientOcclusionEffect.h
+++ b/libraries/render-utils/src/AmbientOcclusionEffect.h
@@ -181,7 +181,7 @@ class DebugAmbientOcclusionConfig : public render::Job::Config {
     Q_PROPERTY(bool showCursorPixel MEMBER showCursorPixel NOTIFY dirty)
     Q_PROPERTY(glm::vec2 debugCursorTexcoord MEMBER debugCursorTexcoord NOTIFY dirty)
 public:
-    DebugAmbientOcclusionConfig() : render::Job::Config(true) {}
+    DebugAmbientOcclusionConfig() : render::Job::Config(false) {}
 
     bool showCursorPixel{ false };
     glm::vec2 debugCursorTexcoord{ 0.5f, 0.5f };
diff --git a/libraries/render-utils/src/LightClusters.h b/libraries/render-utils/src/LightClusters.h
index f495dabebb..fa054c304a 100644
--- a/libraries/render-utils/src/LightClusters.h
+++ b/libraries/render-utils/src/LightClusters.h
@@ -195,7 +195,7 @@ class DebugLightClustersConfig : public render::Job::Config {
     Q_PROPERTY(bool doDrawClusterFromDepth MEMBER doDrawClusterFromDepth NOTIFY dirty)
     Q_PROPERTY(bool doDrawContent MEMBER doDrawContent NOTIFY dirty)
 public:
-    DebugLightClustersConfig() : render::Job::Config(true){}
+    DebugLightClustersConfig() : render::Job::Config(false){}
 
 
     bool doDrawGrid{ false };
diff --git a/libraries/render-utils/src/SubsurfaceScattering.h b/libraries/render-utils/src/SubsurfaceScattering.h
index 30021fae40..780ce34d7f 100644
--- a/libraries/render-utils/src/SubsurfaceScattering.h
+++ b/libraries/render-utils/src/SubsurfaceScattering.h
@@ -149,7 +149,7 @@ class DebugSubsurfaceScatteringConfig : public render::Job::Config {
     Q_PROPERTY(bool showCursorPixel MEMBER showCursorPixel NOTIFY dirty)
     Q_PROPERTY(glm::vec2 debugCursorTexcoord MEMBER debugCursorTexcoord NOTIFY dirty)
 public:
-    DebugSubsurfaceScatteringConfig() : render::Job::Config(true) {}
+    DebugSubsurfaceScatteringConfig() : render::Job::Config(false) {}
 
     bool showProfile{ false };
     bool showLUT{ false };
diff --git a/libraries/render/src/render/Item.h b/libraries/render/src/render/Item.h
index e4dcc7ee03..b8a3fbf0f8 100644
--- a/libraries/render/src/render/Item.h
+++ b/libraries/render/src/render/Item.h
@@ -122,6 +122,7 @@ public:
         Builder& withDynamic() { _flags.set(DYNAMIC); return (*this); }
         Builder& withDeformed() { _flags.set(DEFORMED); return (*this); }
         Builder& withInvisible() { _flags.set(INVISIBLE); return (*this); }
+        Builder& withVisible() { _flags.reset(INVISIBLE); return (*this); }
         Builder& withShadowCaster() { _flags.set(SHADOW_CASTER); return (*this); }
         Builder& withLayered() { _flags.set(LAYERED); return (*this); }
         Builder& withMetaCullGroup() { _flags.set(META_CULL_GROUP); return (*this); }
diff --git a/libraries/task/src/task/Config.h b/libraries/task/src/task/Config.h
index 36dfb35f25..4ba1934643 100644
--- a/libraries/task/src/task/Config.h
+++ b/libraries/task/src/task/Config.h
@@ -12,6 +12,8 @@
 #ifndef hifi_task_Config_h
 #define hifi_task_Config_h
 
+#include <chrono>
+
 #include <QtCore/qobject.h>
 #include <QtCore/qjsondocument.h>
 #include <QtCore/qjsonobject.h>
@@ -108,11 +110,19 @@ public:
     Q_INVOKABLE QString toJSON() { return QJsonDocument(toJsonValue(*this).toObject()).toJson(QJsonDocument::Compact); }
     Q_INVOKABLE void load(const QVariantMap& map) { qObjectFromJsonValue(QJsonObject::fromVariantMap(map), *this); emit loaded(); }
 
+    Q_INVOKABLE QObject* getConfig(const QString& name) { return nullptr; }
+
     // Running Time measurement
     // The new stats signal is emitted once per run time of a job when stats  (cpu runtime) are updated
-    void setCPURunTime(double mstime) { _msCPURunTime = mstime; emit newStats(); }
+    void setCPURunTime(const std::chrono::nanoseconds& runtime) { _msCPURunTime = std::chrono::duration<double, std::milli>(runtime).count(); emit newStats(); }
     double getCPURunTime() const { return _msCPURunTime; }
 
+    // Describe the node graph data connections of the associated Job/Task
+    Q_INVOKABLE virtual bool isTask() const { return false; }
+    Q_INVOKABLE virtual QObjectList getSubConfigs() const { return QObjectList(); }
+    Q_INVOKABLE virtual int getNumSubs() const { return 0; }
+    Q_INVOKABLE virtual QObject* getSubConfig(int i) const { return nullptr; }
+
 public slots:
     void load(const QJsonObject& val) { qObjectFromJsonValue(val, *this); emit loaded(); }
 
@@ -122,6 +132,8 @@ signals:
     void dirtyEnabled();
 };
 
+using QConfigPointer = std::shared_ptr<JobConfig>;
+
 class TConfigProxy {
 public:
     using Config = JobConfig;
@@ -134,11 +146,9 @@ public:
 
     using Persistent = PersistentConfig<TaskConfig>;
 
-    TaskConfig() = default ;
+    TaskConfig() = default;
     TaskConfig(bool enabled) : JobConfig(enabled) {}
 
-
-
     // Get a sub job config through task.getConfig(path)
     // where path can be:
     // - <job_name> search for the first job named job_name traversing the the sub graph of task and jobs (from this task as root)
@@ -170,6 +180,21 @@ public:
         return root->findChild<typename T::Config*>(tokens.front());
     }
 
+    Q_INVOKABLE bool isTask() const override { return true; }
+    Q_INVOKABLE QObjectList getSubConfigs() const override {
+        auto list = findChildren<JobConfig*>(QRegExp(".*"), Qt::FindDirectChildrenOnly);
+        QObjectList returned;
+        for (int i = 0; i < list.size(); i++) {
+            returned.push_back(list[i]);
+        }
+        return returned;
+    }
+    Q_INVOKABLE int getNumSubs() const override { return getSubConfigs().size(); }
+    Q_INVOKABLE QObject* getSubConfig(int i) const override {
+        auto subs = getSubConfigs();
+        return ((i < 0 || i >= subs.size()) ? nullptr : subs[i]);
+    }
+
     void connectChildConfig(QConfigPointer childConfig, const std::string& name);
     void transferChildrenConfigs(QConfigPointer source);
 
@@ -179,8 +204,6 @@ public slots:
     void refresh();
 };
 
-using QConfigPointer = std::shared_ptr<QObject>;
-
 }
 
 #endif // hifi_task_Config_h
diff --git a/libraries/task/src/task/Task.h b/libraries/task/src/task/Task.h
index 022dd99200..93dfdd85f4 100644
--- a/libraries/task/src/task/Task.h
+++ b/libraries/task/src/task/Task.h
@@ -80,10 +80,11 @@ public:
 
     virtual const Varying getInput() const { return Varying(); }
     virtual const Varying getOutput() const { return Varying(); }
+    virtual Varying& editInput() = 0;
 
     virtual QConfigPointer& getConfiguration() { return _config; }
     virtual void applyConfiguration() = 0;
-    void setCPURunTime(double mstime) { std::static_pointer_cast<Config>(_config)->setCPURunTime(mstime); }
+    void setCPURunTime(const std::chrono::nanoseconds& runtime) { std::static_pointer_cast<Config>(_config)->setCPURunTime(runtime); }
 
     QConfigPointer _config;
 protected:
@@ -143,6 +144,10 @@ public:
 
         const Varying getInput() const override { return _input; }
         const Varying getOutput() const override { return _output; }
+        Varying& editInput() override { return _input; }
+
+        template <class I> void feedInput(const I& in) { _concept->editInput().template edit<I>() = in; }
+        template <class I, class S> void feedInput(int index, const S& inS) { (_concept->editInput().template editN<I>(index)).template edit<S>() = inS; }
 
         template <class... A>
         Model(const std::string& name, const Varying& input, QConfigPointer config, A&&... args) :
@@ -201,11 +206,12 @@ public:
         PerformanceTimer perfTimer(getName().c_str());
         // NOTE: rather than use the PROFILE_RANGE macro, we create a Duration manually
         Duration profileRange(jobContext->profileCategory, ("run::" + getName()).c_str());
-        auto start = usecTimestampNow();
+
+        auto startTime = std::chrono::high_resolution_clock::now();
 
         _concept->run(jobContext);
 
-        _concept->setCPURunTime((double)(usecTimestampNow() - start) / 1000.0);
+        _concept->setCPURunTime((std::chrono::high_resolution_clock::now() - startTime));
     }
 
 protected:
@@ -242,6 +248,8 @@ public:
 
         const Varying getInput() const override { return _input; }
         const Varying getOutput() const override { return _output; }
+        Varying& editInput() override { return _input; }
+
         typename Jobs::iterator editJob(std::string name) {
             typename Jobs::iterator jobIt;
             for (jobIt = _jobs.begin(); jobIt != _jobs.end(); ++jobIt) {
@@ -370,8 +378,36 @@ public:
 
 protected:
 };
-}
 
+template <class JC>
+class Engine : public Task<JC> {
+public:
+    using Context = JC;
+    using ContextPointer = std::shared_ptr<Context>;
+    using Config = TaskConfig;
+    using TaskType = Task<JC>;
+    using ConceptPointer = typename TaskType::ConceptPointer;
+
+    Engine(ConceptPointer concept) : TaskType(concept) {}
+    ~Engine() = default;
+
+    void reset(const ContextPointer& context) { _context = context; }
+
+    void run() {
+        if (_context) {
+            run(_context);
+        }
+    }
+
+protected:
+    void run(const ContextPointer& jobContext) override {
+        TaskType::run(_context);
+    }
+
+    ContextPointer _context;
+};
+
+}
 
 #define Task_DeclareTypeAliases(ContextType) \
     using JobConfig = task::JobConfig; \
@@ -379,6 +415,7 @@ protected:
     template <class T> using PersistentConfig = task::PersistentConfig<T>; \
     using Job = task::Job<ContextType>; \
     using Task = task::Task<ContextType>; \
+    using _Engine = task::Engine<ContextType>; \
     using Varying = task::Varying; \
     template < typename T0, typename T1 > using VaryingSet2 = task::VaryingSet2<T0, T1>; \
     template < typename T0, typename T1, typename T2 > using VaryingSet3 = task::VaryingSet3<T0, T1, T2>; \